For Aniston and Oyelowo, the bookings are a chance to show that they have no hard feelings over the failure of the Academy’s Actors Branch to nominate them for their roles in “Cake” and “Selma,” respectively. The two were among the most high-profile “snubs” of Oscar nomination morning.

And for Travolta, the telecast could provide an opportunity for redemption — or a chance to publicly apologize, or at least poke a little fun at himself, on the same stage where the “Pulp Fiction” star famously introduced Idina Menzel as “Adele Dazeem” at last year’s Oscars.

First-timer Oyelowo will present and also represent his Best Picture nominee “Selma,” as will Miller for “American Sniper.” Though she is far better known as a TV star (on “Scandal,” a show that airs on the Oscars’ home network, ABC) than a film actress, Washington is a returning Oscar presenter. She introduced Pharrell Williams in 2014 for his performance of”Happy,” and managed to get his name right.

Pratt, the star of the Oscar-nominated “Guardians of the Galaxy,” will further carve out A-list status by gracing the Academy stage, and garner some decent facetime in promoting “Jurassic World.”

Best Performance by an Actor in a Leading Role:Steve Carell in “Foxcatcher," Bradley Cooper in “American Sniper," Benedict Cumberbatch in “The Imitation Game," Michael Keaton (pictured) in “Birdman or (The Unexpected Virtue of Ignorance)," Eddie Redmayne in “The Theory of Everything”

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Best Performance by an Actor in a Supporting Role:Robert Duvall in “The Judge,” Ethan Hawke in “Boyhood," Edward Norton in “Birdman or (The Unexpected Virtue of Ignorance)," Mark Ruffalo in “Foxcatcher," J.K. Simmons (pictured) in “Whiplash”

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Best Performance by an Actress in a Leading Role:Marion Cotillard in “Two Days, One Night,” Felicity Jones (pictured) in “The Theory of Everything," Julianne Moore in “Still Alice," Rosamund Pike in “Gone Girl," Reese Witherspoon in “Wild”

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Best Actress in a Supporting Role:Patricia Arquette in “Boyhood," Laura Dern in “Wild," Keira Knightley (pictured) in “The Imitation Game," Emma Stone in “Birdman or (The Unexpected Virtue of Ignorance)," Meryl Streep in “Into the Woods”

Best Original Song:“Everything Is Awesome” from “The Lego Movie," music and lyric by Shawn Patterson; “Glory” from “Selma” (pictured), music and lyric by John Stephens and Lonnie Lynn; “Grateful” from “Beyond the Lights,” music and lyric by Diane Warren; “I’m Not Gonna Miss You” from “Glen Campbell…I’ll Be Me,” music and lyric by Glen Campbell and Julian Raymond; “Lost Stars” from “Begin Again,” music and lyric by Gregg Alexander and Danielle Brisebois